public class Test2 {


/*    public static void swap(Test test1,Test test2){
        int temp = test1.val;
        test1.val = test2.val;
        test2.val = temp;
    }

    public static void main(String[] args) {
        Test test1 = new Test();
        test1.val = 10;

        Test test2 = new Test();
        test2.val = 20;

        swap(test1,test2);
        System.out.println(test1.val+" "+test2.val);


    }*/
}
